正在阅读：CRichEditCtrl实现MSN背景,字体,超链接CRichEditCtrl实现MSN背景,字体,超链接

2005-07-13 10:22 出处：作者：dtianx 责任编辑：moningfeng

　　实现代码就一点，就是用这个类来Load Richedit20

1_AFX_RICHEDITEX_STATE::_AFX_RICHEDITEX_STATE()
2{
3 m_hInstRichEdit20 = NULL ;
4}
5
6
7
8_AFX_RICHEDITEX_STATE::~_AFX_RICHEDITEX_STATE()
9{
10 if( m_hInstRichEdit20 != NULL )
11 {
12 ::FreeLibrary( m_hInstRichEdit20 ) ;
13 }
14}
15
16
17
18_AFX_RICHEDITEX_STATE _afxRichEditStateEx ;
19
20
21
22BOOL PASCAL AfxInitRichEditEx()
23{
24 if( ! ::AfxInitRichEdit() )
25 {
26 return FALSE ;
27 }
28 _AFX_RICHEDITEX_STATE* l_pState = &_afxRichEditStateEx ;
29 if( l_pState->m_hInstRichEdit20 == NULL )
30 {
31 l_pState->m_hInstRichEdit20 = LoadLibraryA("RICHED20.DLL") ;
32 }
33 return l_pState->m_hInstRichEdit20 != NULL ;
34}

　　然后在我们创建RichEdit的时候，就使用 RichEdit20A 作为ClassName;

1CreateEx(dwExStyle, _T( "RichEdit20A" ), NULL, dwStyle, rect, pParentWnd, nID, NULL );

　　这样一来，你就使用先进的RichEdit20A了，可以简单的实现你的要的功能了。先给你的RichEditCtrl设置EN_LINK Style, 代码量也是少得可怜:

1unsigned mask = ::SendMessage(m_hWnd, EM_GETEVENTMASK, 0, 0);
2::SendMessage(m_hWnd, EM_SETEVENTMASK, 0, mask | ENM_LINK | ENM_MOUSEEVENTS | ENM_SCROLLEVENTS | ENM_KEYEVENTS);
3::SendMessage(m_hWnd, EM_AUTOURLDETECT, true, 0);

　　如果你觉得使用CRichEditCtrl的Member Function更方便的话，当然可以使用GetEventMak和SetEventMask，同样方便。为了扩展的需要，RichEdit20并没有定义为，当你点击links的时候用浏览器打开这个页面，而是让你处理这个点击，你就可以任意的扩展！

ON_NOTIFY(EN_LINK, IDC_SENDMSG, OnRichEditExLink )

　　知道在哪加吧。这个IDC_SENGMSG就是RichEdit的Resource ID, OnRichEditExLink就是处理这个消息的函数咯，然后看最后的代码。

1void CMsgerDlg::OnRichEditExLink( NMHDR* in_pNotifyHeader, LRESULT* out_pResult )
2{
3 ENLINK* l_pENLink = ( ENLINK* )in_pNotifyHeader ;
4 *out_pResult = 0 ;
5 switch( l_pENLink->msg )
6 {
7 default:{}
8 break ;
9
10 case WM_LBUTTONDOWN:
11 {
12 CString l_URL ;
13 CHARRANGE l_CharRange ;
14 CExtRichEdit *m_TempEdit;
15 m_TempEdit = (CExtRichEdit*)CExtRichEdit::FromHandle(l_pENLink->nmhdr.hwndFrom);
16 m_TempEdit->GetSel( l_CharRange ) ;
17 m_TempEdit->SetSel( l_pENLink->chrg ) ;
18 l_URL = m_TempEdit->GetSelText() ;
19 m_TempEdit->SetSel( l_CharRange ) ;
20 CWaitCursor l_WaitCursor ;
21 ShellExecute( this->GetSafeHwnd(), _T( "open" ), l_URL, NULL, NULL, SW_SHOWNORMAL ) ;
22 *out_pResult = 1 ;
23 }
24 break ;
25
26 case WM_LBUTTONUP:
27 {
28 *out_pResult = 1 ;
29 }
30 break ;
31 }